4D Technology designs and manufactures optical surface gauges, surface roughness profilers, and other metrology equipment for accurate 3D, non-contact measurement of precision surfaces. Our products use patented, state-of-the-art technology to bring high resolution measurement to production environments, even in the presence of severe vibration and turbulence. Features include high-speed measurement, sub-nanometer precision, and robust performance in challenging conditions. Ideal for semiconductor, aerospace, automotive, medical device, and precision manufacturing applications requiring high-accuracy surface measurement and quality control.